Paper-bottle closure.



H. D. CAYLOR.

PAPER BOTTLE CLOSURE. APPLICATION FILED JULY 12'. 1915.

V2. Patented July 11, 1916.

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Specification of Letters Patent.

Patented liully llll, TWW.

Application filed July 12, 1915. Serial No. 39,418.

To all whom it may concern:

]Be it known that T, HARRY D. CAYLOR, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Paper-Bottle Closures, of which the following is a specification.

This invention relates to improvements in closures for paper vessels, and has particular reference to paper bottles such as are used for delivering milk, and the like; and the object is to provide a bottle with a'tapering neck terminating with an elastic head to enter .a channel in a paper cap the middle of which forms an elastic plug which is sprung into the bore of the neck to prevent accidental removal. The object also is to hermetically seal the I accomplish the above and other objects which will hereinafter appear, by the mechanism illustrated in the accompanylng drawing, in which Figure 1, is a side'elevation and partial vertical section of a paper bottle embodying my invention. Fig. 2 is a fragment of Fig. 1 on a larger scale. Fig. 3 is a top or outside view of the cap removed from the bottle and Fig. 4 is a view of the opposite or inner side of same.

Like characters of reference indicate like parts throughout the several views of the drawing.

The sides 5 of the bottle are in the form of the'frustum of a cone, the top edge of which is turned in to form a bead 6, which will preferably be hollow to increase its thickness and elastic compressibility. An annular paper flange 7' is glued on the inside of the bottle below the head, in the usual manner. i

The cap is formedout of a paper disk. It has an annular marginal 'channel 8 adapted to receive the head 6. The inner walls of the channel are inwardly oblique thereby producing a major middle member 9 of the' cap, which is greater in diameter than the opening between the annular head 6, through which it is passed-in placing thecap on the bottle.

The elasticity of the paper in, the bead 6,

and also in the cap allows the member 9 to be forced past the bead and seated on the flange 7, as shown in Figs. 1 and 2. The paper of the bead and the cap spring back and lock the cap on the bottle by the engagement of thecblique walls of the channel 8 agalnst the oblique inner walls of the bead. Where it is desired to hermetically seal the o1nt between the cap and bottle, the cap is coated on its under side, in the channel 8 and on the bottom of the member 9, with paraflin 10, which is applied hot, and the cap is assembled on the bottle before the .paraflin cools, which causes it to adhere to the paraflin with which the bottles are always coated, to' make them waterproof.

Having thus fully described my invention, what I claim as new and wish to secure by Letters Patent of the United States, is-

1. The combination with a paper bottle having sides in the form of a truncated cone the upper edge of which is bent in to form a hollow elastic head, of a one-piece paper cap having an annular channel to receive the head, the portion of the cap within the channel forming a plug comprising a fiat circular area which overhangs the channel and is of greater diameter than the inside diameter of the bottle at its beaded end and is forced through the latter by springing the bead and plug.

2. The combination with a paper bottle having truncated conical sides and a hollow elastic beaded upper end, and an inside flange near'the bead, of a one-piece paper cap having an annular channel to receive the head, that portion of the cap which is boundedby the channelcomprising a flat circular area which overhangs the channel and is greater in diameter than the inside diameter of the bottle at its beaded end, and is forced through the neck by s ringing the parts into contact with said insi efiange, and a sealing layer of par'afin between the contacting portions of the cap and bottle.

In witness whereof have hereunto set my hand and seal at Indianapolis, Indiana, this 29th day of June, A. 1)., one thousand nine hundred and fifteen. JETARRY l). GAYLOR. [14s.]

Witnesses:

J. A.'MI1 ITU N, F. W. Workman. 

